Jan ( N = 40 )

Feb ( N = 51 )

Mar ( N = 93 )

Apr ( N = 90 )

May ( N = 49 )

Jun ( N = 46 )

Jul ( N = 75 )

Aug ( N = 45 )

Sep ( N = 38 )

Oct ( N = 66 )

Nov ( N = 90 )

Dec ( N = 27 )